Standard Test Methods for Specific Gravity of Soil Solids by the Water Displacement Method

Importancia y uso:

5.1 The specific gravity of soil solids is used in calculating the phase relationships of soils, such as void ratio and degree of saturation.

5.1.1 The specific gravity of soil solids is used to calculate the density of the soil solids. This is done by multiplying the specific gravity by the density of water at 20°C. The soil solids density is nearly independent of temperature.

5.2 The term soil solids is typically assumed to mean naturally occurring mineral particles or soil like particles that are not readily soluble in water. Therefore, the specific gravity of soil solids containing extraneous matter, such as cement, lime, and the like, water-soluble matter, such as sodium chloride, and soils containing matter with a specific gravity less than one, typically require special treatment (see Note 2) or a qualified definition of their specific gravity.

Note 2: For some soils containing a significant fraction of organic matter, kerosene is a better wetting agent than water and may be used in place of test water for oven-dried specimens. Kerosene is a flammable liquid that must be used with extreme caution. This standard should not be used when using kerosene as the test fluid.

5.3 The balances, pycnometer sizes, and specimen masses are specified to obtain test results reportable to four significant digits.

Note 3: The quality of the result produced by these test methods is dependent on the competence of the personnel performing it, and the suitability of the equipment and facilities used. Agencies that meet the criteria of Practice D3740 are generally considered capable of competent and objective testing/sampling/inspection/etc. Users of these test methods are cautioned that compliance with Practice D3740 does not in itself assure reliable results. Reliable results depend on many factors; Practice D3740 provides a means of evaluating some of those factors.

Subcomité:

D18.03

Referida por:

D6766-20A, C0128-22, C0128-22, D5675-13R23, D5202_D5202M-16, D6836-16, F3510-21, D5550-23, D4829-21, F2747-19, D5567-94R18, D6995-21, D6467-21E01, D4943-18R24, F1815-11R18, C0128-22, D7181-20, D2435_D2435M-11R20, D0653-24A, D4767-11R20, D4254-16, D4253-16E01, E2278-13R19, D2166_D2166M-24, D7663-12R24, D7664-10R18E01, D4546-21, D7263-21, E3282-22, D2850-24, D1586_D1586M-18E01, E2277-14R19, D8296-19, D7928-21E01, E3268-21, D0698-12R21, D1557-12R21, D7100-11R20, D7928-21E01, D4829-21, E3163-24, D5084-24, D0698-12R21, D7382-20, D4186_D4186M-20E02, D7263-21, D2166_D2166M-24, D5084-24, E2243-13R19, D6528-24, D4546-21, D7608-18E01, D1557-12R21, D7263-21, D2435_D2435M-11R20, D0698-12R21

Volúmen:

04.08

Número ICS:

93.020 (Earthworks. Excavations. Foundation construction. Underground works)